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3. An increase in thereal wage leads to
a. an increase in labor supply due to thesubstitution effect but a decrease due to the income effect;*
b. a decrease in labor supply due to thesubstitution effect but an increase due to the income effect;
c. increases in labor supply due to thesubstitution and income effects;
d. decreases in labor supply due to thesubstitution and income effects;
e. an increase in the price level.
这道题答案是A。后面三道题答案分别得A,A,C 有大神了分析一下问什么，第一道题就是两个同时考虑后面只考虑一个了。
6. Marylin can workas much as 40 weeks per year at a take-home wage of $2,000 per week. She also has non-wage income equal to $10,000per year. A decrease in her non-wage income will cause Erica to
- work more due to the income effect;
- work more due to the substitution effect;
- work less due to the income effect;
- work less due to the substitution effect;
- no change his work effort.
7. An decrease in herwage will cause Marylin to
- work more due to the income effect;
- work more due to the substitution effect;
- work less due to the income effect;
- work less due to the substitution effect;
- no change her work effort.
8. Bob currentlytakes home $80,000 per year after taxes. He expects to receive $20,000 after taxes when he retires in 20years. Over this period he could earn200% on any money he invested in the company pension plan. An increase in his rate of return will causeHan to
- save more due to the income effect;
- save less due to the income effect;
- save more due to the substitution effect;
- save less due to the substitution effect;
- a. and d.
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